What happens when Win7 is invaded by malware?

1. The browser homepage connection has been tampered with.

If you don’t adjust it and find that the default browser homepage changes, it is likely The system is infected with malware. Similarly, when using Baidu search, clicking on the connection provided by Baidu, but being directed to a random connection, is also the performance of the system infected by viruses or malware.

2, the browser can not access the Internet

When the network connection is normal, but there is a problem that the Internet cannot be accessed, it is very likely that the system is infected by malware. All we have to do at this point is to double check the settings and go to the browser's network connection project to make sure no proxy server is set up. If you confirm that you are not using a proxy server, it is because the system is infected with malware.

3, pay attention to the pop-up prompts

Normally, a potential sign of malware infection will appear pop-ups, sometimes pop-up erotic windows, unexpected pop-ups, Especially when there is no pop-up window that appears when the web browser is launched, it is a sign that the system has been infected by malware. You must restart the system, enter safe mode, and use a powerful anti-malware tool to delete it. Drop it.

4, system performance has a tendency to decline

The most annoying thing about malware is that it will lead to system performance degradation, no matter the speed of the network connection or application running. Of course, only the performance degradation of the system does not mean that it is infected by malware, and it is also likely to be caused by other reasons, such as disk fragmentation and system garbage. First, we should eliminate other possibilities and take measures to deal with the problem of system performance degradation. The usual measures include disk defragmentation, garbage cleaning, memory increase, etc. If the system performance is still not improved after taking necessary measures, it is very likely It is a problem caused by malware.